Unmanned aerial vehicle



FIG. 1 is a top perspective view of an unmanned aerial vehicle showing the claimed design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines immediately adjacent shaded surfaces represent boundaries that form no part of the claim; all other broken lines depict portions of the unmanned aerial vehicle that form no part of the claimed design. 

CLAIM The ornamental design for an unmanned aerial vehicle, as shown and described. 